private void ButtonSignin_Click(object sender, EventArgs e)
{
MYDB lg = new MYDB();
dbfromsqlDataContext db = new dbfromsqlDataContext(lg.Connection);
var selectcus = from i in db.GetTable <Customersdb>()
where i.Cuser == textBoxUser.Text && i.Cpass == textBoxPass.Text
select i;
if (selectcus.Count() > 0)
{
KhachHangForm kh = new KhachHangForm(textBoxUser.Text);
kh.Show();
}
else
{
db = new dbfromsqlDataContext(lg.Connection);
var selectemp = from i in db.GetTable <Employeesdb>()
where i.Euser == textBoxUser.Text && i.Epass == textBoxPass.Text
select i;
if (selectemp.Count() > 0)
{
NhanVienForm nv = new NhanVienForm();
nv.Show();
}
else
{
MessageBox.Show("invalid user");
}
}
}
private void ButtonSignin_Click(object sender, EventArgs e)
{
MYDB lg = new MYDB();
lg.openconection();
SqlDataAdapter adapter = new SqlDataAdapter();
DataTable table = new DataTable();
SqlCommand command = new SqlCommand("SELECT * FROM Customersdb WHERE Cuser=@User and Cpass=@Pass", lg.Connection);
command.Parameters.Add("@User", SqlDbType.VarChar).Value = textBoxUser.Text;
command.Parameters.Add("@Pass", SqlDbType.VarChar).Value = textBoxPass.Text;
SqlDataReader reader = command.ExecuteReader();
if ((reader.Read() == true))
//if (command.ExecuteNonQuery() == 1)
{
KhachHangForm kh = new KhachHangForm(textBoxUser.Text);
kh.Show();
}
else
{
lg.closeconection();
lg.openconection();
command = new SqlCommand("SELECT * FROM Employeesdb WHERE Euser=@User and Epass=@Pass", lg.Connection);
command.Parameters.Add("@User", SqlDbType.VarChar).Value = textBoxUser.Text;
command.Parameters.Add("@Pass", SqlDbType.VarChar).Value = textBoxPass.Text;
SqlDataReader reader1 = command.ExecuteReader();
if (reader1.Read() == true)
{
NhanVienForm nv = new NhanVienForm();
nv.Show();
}
else
{
MessageBox.Show("invalid user");
}
}
}
